Most nail diseases can be diagnosed by clinical examination: a correct evaluation of the patient is therefore mandatory. The visit must also look at the feet and hands, where shape and skin should be evaluated, and sometimes skin at other sites. Nail examination should be carried out in a well-lit area, provided with a lamp to increase illumination of selected areas. All nails should be looked at, even if the patient presents with a disease involving one digit. Nail evaluation must include the nail plate and the periungual tissues, including the distal pulp, and should be done moving the digit, in order to look at it frontally, laterally, and from below. Touching the digit will allow perception of its temperature and show the presence of pain. Nail clippers and a dermatoscope should be at hand to allow correct study of the different features.